package com.kucun.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@WebFilter(urlPatterns="/page/*")
public class Index implements Filter {

	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		// TODO Auto-generated method stub
	    HttpServletRequest request = (HttpServletRequest)arg0;
	    HttpServletResponse response = (HttpServletResponse)arg1;
	    HttpSession session2 = 	request.getSession();
	    if(session2.getAttribute("user")==null){
	    	response.sendRedirect("../login.jsp");
	    }
	    arg2.doFilter(request, arg1);
	}

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}
     
}
